Numerical investigation on the feasibility of metal foam as flow field in alkaline anion exchange membrane fuel cell

Cheng, Chaochao; Yang, Zirong; Liu, Zhi; Tongsh, Chasen; Zhang, Guobin; Xie, Biao; He, Shaoqing; Jiao, Kui

doi:10.1016/j.apenergy.2021.117555

Cited by 21 publications

(11 citation statements)

References 28 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…[88] (i) Water distribution in the membrane at the current density of 0.2 A cm À 2 for AEMFCs with metal foam flow fields and serpentine flow channel. [175] (j) Temperature distribution at the middle plane of ACL at the current density of 0.1 A cm À 2 for AEMFCs with metal foam flow fields and serpentine flow channel. [176] three-phase reaction interface are crucial to the optimal performance of the catalyst.…”

Section: Ionomer Contentmentioning

confidence: 99%

“…However, the flow fields suitable for PEMFCs are not compatible with AEMFCs due to their different water transport characteristics. A threedimensional multi-phase model was implemented by Cheng et al [175,176] to investigate the feasibility of metal foam (MF) flow fields in AEMFCs and the effects of the design and operating parameters. Their findings suggest that AEMFCs with MF flow fields have more uniform substance distribution (e. g., liquid water, water vapor, and oxygen) and uniform temperature distribution compared to AEMFCs with conventional serpentine flow channels, as shown in Figures 15(i) and (j).…”

Section: Bipolar Platementioning

confidence: 99%

“…(h) Performance of AEMFCs based on GT78‐15 AEM, with different membrane thicknesses [88] . (i) Water distribution in the membrane at the current density of 0.2 A cm −2 for AEMFCs with metal foam flow fields and serpentine flow channel [175] . (j) Temperature distribution at the middle plane of ACL at the current density of 0.1 A cm −2 for AEMFCs with metal foam flow fields and serpentine flow channel [176] …”

Section: Performance Optimization Strategiesmentioning

confidence: 99%

See 2 more Smart Citations

Recent Development of Anion Exchange Membrane Fuel Cells and Performance Optimization Strategies: A Review

Chan

2023

The Chemical Record

View full text Add to dashboard Cite

Anion exchange membrane fuel cells (AEMFCs) are the most promising low‐temperature fuel cells and have received extensive attention. Compared to PEMFCs, the cost per unit of power can be significantly reduced for AEMFCs because, in theory, they allow the usage of non‐precious metal catalysts and low‐cost cell components. Owing to the development of advanced materials and performance improvement strategies, AEMFCs have achieved new records in both initial performance and durability. However, the high performance currently achieved is contingent on certain conditions, e. g., high Pt loading, large gas flowrates, and operation in pure O2, which are far from practical applications. Therefore, the transition to commercially relevant performance and durability is the next goal of AEMFCs. This paper reviews the performance data of H2‐fueled AEMFCs since 2010 and summarizes possible performance optimization schemes, which can provide useful insights for developing next‐generation AEMFCs.

show abstract

Section: Ionomer Contentmentioning

confidence: 99%

Section: Bipolar Platementioning

confidence: 99%

Section: Performance Optimization Strategiesmentioning

confidence: 99%

See 1 more Smart Citation

Recent Development of Anion Exchange Membrane Fuel Cells and Performance Optimization Strategies: A Review

Chan

2023

The Chemical Record

View full text Add to dashboard Cite

show abstract

“…[49,50] The mathematical models involved in the simulation, including mass conservation equation, momentum conservation equation, energy conservation equation, gas species conservation equation, electrochemical equation, and water transport equation. In this study, the LS model is used to calculate the gas flow process within the FC, and the gas-phase flow velocity and liquid-phase flow velocity are assumed to be the consistent, and each conservation equation is shown as follows [51][52][53][54][55][56] Mass conservation equation Liquid water density [49] kg m À3 970…”

Section: Assumptions and Conservation Equationsmentioning

confidence: 99%

3D Numerical Simulation of Metal Bipolar Plate Proton Exchange Membrane Fuel Cell Considering Wavy Interlaced Flow Field

Zhang

et al. 2023

Energy Tech

View full text Add to dashboard Cite

A metal bipolar plate fuel cell (FC) composed of gas distribution zones (GDZ) with ordered distribution of "dot matrix" structures, a complex waveform staggered fluid region, and the effect of cooling flow field (FF) is proposed in this investigation. The 3D multiphase model is applied to simulate the two-phase flow in the FC. First, the cathode catalyst layer (CCL) has a higher electrochemical reaction rate (ERR) when gas diffusion layer (GDL) is anisotropic, and the ERR under channels is much higher than ribs. Increasing the thickness of GDL is not conducive to gas mass transfer, and the maximum current density reduction rate is 2.94%. Increasing the porosity of GDL is beneficial to improve the mass transport efficiency, and the liquid discharge is promoted. Second, the increase of GDL contact angle affects the cathode microporous layer and liquid saturation in CCL, and the current density is the highest when the contact angle is 120°. Finally, the volume-of-fluid model is utilized to analyze the drainage process in the GDZ and cathode small-size FF. It is indicated in the results that water tends to concentrate at the outlet corner of GDZ in liquid form.

show abstract

“…This material shows better uniformity and convection of the gas reactant due to the divergent transport mode. [ 16 , 17 , 18 ] 3‐D flow fields have gained considerable attention because of their excellent mass transfer to electrodes. [ 19 , 20 , 21 ] At the same time, various tools have been applied to the study of two‐phase flow in fuel cells, such as the volume of fluid method, [ 22 ] the lattice Boltzmann method, [ 23 ] and artificial intelligence techniques, [ 24 ] which provide guidance for the design of the flow field.…”

Section: Introductionmentioning

confidence: 99%

Alternating Flow Field Design Improves the Performance of Proton Exchange Membrane Fuel Cells

et al. 2022

Self Cite

View full text Add to dashboard Cite

The flow field structure of a proton exchange membrane fuel cell (PEMFC) is a determining factor for improving the cell power density. In this study, a universal alternating flow field design for the first time is proposed, which arranges structural units with different flow resistances in an alternating way to significantly improve the gas transfer rate into the electrode, with the advantages of easy machining and low pumping loss. Based on the design, it is proposed and tested large-scale fuel cells with three novel flow fields by combining a parallel channel, baffled channel, serpentine channel, and narrowed channel. The results show that the design can significantly enhance the gas supply efficiency and that the novel baffled flow field improves the PEMFC performance by 23% with low pumping loss. The design employed in the study offers additional options for flow field optimization and contributes to the early achievement of next-generation ultrahigh power density fuel cells.

show abstract

Numerical investigation on the feasibility of metal foam as flow field in alkaline anion exchange membrane fuel cell

Cited by 21 publications

References 28 publications

Recent Development of Anion Exchange Membrane Fuel Cells and Performance Optimization Strategies: A Review

Recent Development of Anion Exchange Membrane Fuel Cells and Performance Optimization Strategies: A Review

3D Numerical Simulation of Metal Bipolar Plate Proton Exchange Membrane Fuel Cell Considering Wavy Interlaced Flow Field

Alternating Flow Field Design Improves the Performance of Proton Exchange Membrane Fuel Cells

Contact Info

Product

Resources

About